Preparation of Prussian Blue Containing Polymeric Nanocapsule via Interfacial Confined Coordination in Crosslinked Inverse Miniemulsion

Lin Wu; Tao Pang; Yebin Guan; Yiguo Li

doi:10.3390/polym11020266

Preparation of Prussian Blue Containing Polymeric Nanocapsule via Interfacial Confined Coordination in Crosslinked Inverse Miniemulsion

Polymers (Basel). 2019 Feb 5;11(2):266. doi: 10.3390/polym11020266.

Authors

Lin Wu¹, Tao Pang², Yebin Guan³, Yiguo Li^{4

5}

Affiliations

¹ Anhui Key Laboratory of Functional Coordination Compounds, School of Chemistry and Chemical Engineering, Anqing Normal University, Anqing, Anhui 246011, China. wulinaqsfxy@163.com.
² Anhui Key Laboratory of Functional Coordination Compounds, School of Chemistry and Chemical Engineering, Anqing Normal University, Anqing, Anhui 246011, China. leileitaotao6666@163.com.
³ Anhui Key Laboratory of Functional Coordination Compounds, School of Chemistry and Chemical Engineering, Anqing Normal University, Anqing, Anhui 246011, China. guanyb@aqnu.edu.cn.
⁴ Ningbo Key Laboratory of Specialty Polymers, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China. liyiguo@nbu.edu.cn.
⁵ Anhui Collaborative Innovation Centre for Petrochemical New Materials, School of Chemistry and Chemical Engineering, Anqing Normal University, Anqing, Anhui 246011, China. liyiguo@nbu.edu.cn.

Abstract

This work presents a simple and facile strategy for the creation of Prussian blue containing polymeric nanocapsules. An crosslinked inverse miniemulsion with a formula of water/ K₄Fe(CN)₆/1,2-bis-(-2-iodoethyl) ethane(BIEE)/ toluene/ PDMAEMA-b-PS stabilizer mixture was prepared as soft template firstly. A crosslinking nanocapsule structure with K₄Fe(CN)₆ in water core could be achieved by a crosslinking reaction between PDMAEMA-b-PS stabilizers and BIEE. Upon the following addition of FeCl₃ ether solution into the oil phase of this inverse miniemulsion, a coordination reaction between two iron salts occurred immediately to form a Prussian blue complex. Due to the solubility limitation of FeCl₃ in the oil phase of the miniemulsion, forcing the coordination reaction of K₄Fe(CN)₆ and FeCl₃ mainly occurred at the oil-water interface of the nanocapsules, resulting in a soft polymer/Prussian blue(PB) hybrid nanocapsule.

Keywords: Prussian blue; coordination; inverse miniemulsion; polymeric hybrid nanocapsule.